Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

CHECK RGB (B: BLUE) SIGNAL CIRCUIT CONTINUITY

Turn ignition switch OFF.
Disconnect AV control unit connector M45 and display unit connector.

Check continuity between AV control unit connector M45 terminal 55 and display unit connector M93 terminal 18.

AV control unit		Display unit		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M45	55	M93	18	Yes

Check continuity between AV control unit connector M45 terminal 55 and ground.

AV control unit		Ground	Continuity
Connector	Terminal
M45	55		No

Is inspection result normal?

YES

GO TO STEP 2 .

Repair or replace harness or connectors.

CHECK RGB (B: BLUE) SIGNAL

Connect AV control unit connector M45 and display unit connector.
Turn ignition switch ON.

Check signal between display unit connector M93 terminal 18 and ground.

Display unit		Ground	Condition	Reference value
(+)		(-)
Connector	Terminal	(-)
M93	18	-	"Color Spectrum Bar" on DISPLAY DIAGNOSIS screen.	Courtesy of NISSAN NORTH AMERICA, INC.

Is inspection result normal?

YES

Replace display unit. Refer to REMOVAL AND INSTALLATION .

Replace AV control unit. Refer to REMOVAL AND INSTALLATION .